Three lines mean girl?

Jo

Hello everyone,

Went for a 19 week scan today and didn’t want to find out the sex of bubs. However whenever the tech floated near the groin area, I would see three lines. They were quite long though ( about 1cm).

Question is, how long are the lines supposed to be? I’ve now got it stuck in my head that I’m having a girl, but I might be confusing it for something else?

Hope this makes sense! And any insight is appreciated 😊